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±250-mV input, precision reinforced isolated amplifier with integrated DC/DC converter

Availability: 221


Package | PIN: SO-MOD (DWE) | 16
Temp: Q (-40 to 125)
Package qty | Carrier: 2,000 | LARGE T&R
Qty Price
1-99 $7.93
100-249 $7.12
250-999 $5.08
1,000+ $4.31


  • 3.3-V or 5-V single supply, CISPR11-compliant operation with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Initial offset voltage: ±0.2 mV (max)
    • Offset drift: ±5 µV/°C (max)
    • Initial gain error: ±0.4% (max)
    • Gain drift: ±60 ppm/°C (max)
    • Initial nonlinearity: ±0.075% (max)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11 (VDEV 0884-11): 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
  • High CMTI: 75 kV/µs (min)

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Texas Instruments  PAMC3301DWER

The AMC3301 is a precision, isolated amplifier with a fully integrated, isolated DC/DCconverter that allows single-supply operation from the low-side of the device. The reinforcedcapacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and separates partsof the system that operate on different common-mode voltage levels and protects lower-voltage partsfrom damage.

The input of the AMC3301 is optimized for direct connection to shunt resistors or otherlow voltage-level signal sources. The integrated isolated DC/DC converter allows flexible placementof the shunt and the AMC3301, and makes the device a unique solution for space-constrainedapplications.

The excellent performance of the device supports accurate current monitoring and control,resulting in system-level power savings and, especially in motor control applications, low torqueripple. The integrated input common-mode overvoltage and DC/DC converter operation fault detectionfeatures of the AMC3301 simplify system-level design and diagnostics.

The AMC3301 is specified over the extended industrial temperature range of –40°C to+125°C.